Alert archive / Georgia / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 468
The Storm Prediction Center issued this severe thunderstorm watch at Jul 1, 2007, 12:10 PM CDT for 22 counties in Alabama; 96 counties in Georgia; 22 counties in Tennessee. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2007, 12:10 PM CDT (17:10 UTC)
- Expired
- Jul 1, 2007, 8:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 140 counties
Blount County, AL, Calhoun County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Colbert County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Randolph County, AL, St. Clair County, AL, Talladega County, AL, Winston County, AL, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Carroll County, GA, Catoosa County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Douglas County, GA, Emanuel County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Glascock County, GA, Gordon County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lumpkin County, GA, Macon County, GA, Madison County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Murray County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Pulaski County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Towns County, GA, Treutlen County, GA, Troup County, GA, Twiggs County, GA, Union County, GA, Upson County, GA, Walker County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, White County, GA, Whitfield County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Bedford County, TN, Bledsoe County, TN, Bradley County, TN, Cannon County, TN, Coffee County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hamilton County, TN, Lincoln County, TN, Marion County, TN, Marshall County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Polk County, TN, Rhea County, TN, Rutherford County, TN, Sequatchie County, TN, Van Buren County, TN, Warren County, TN
The radar
The Northeast Alabama radar (KHTX), 88 km from the middle of the area, began a volume at 17:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 12:13 PM CDT | Severe Thunderstorm Warning | FFC | Dawson | 47 min |
| Jul 1, 12:14 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence | 31 min |
| Jul 1, 12:22 PM CDT | Severe Thunderstorm Warning | FFC | Forsyth, Hall | 53 min |
| Jul 1, 12:44 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence | 31 min |
| Jul 1, 12:46 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 29 min |
| Jul 1, 1:22 PM CDT | Severe Thunderstorm Warning | HUN | Limestone | 23 min |
| Jul 1, 1:26 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence, Morgan | 34 min |
| Jul 1, 1:33 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 27 min |
| Jul 1, 1:34 PM CDT | Severe Thunderstorm Warning | OHX | Rutherford | 26 min |
| Jul 1, 1:40 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Morgan | 35 min |
| Jul 1, 1:45 PM CDT | Severe Thunderstorm Warning | FFC | Jackson | 60 min |
| Jul 1, 1:58 PM CDT | Severe Thunderstorm Warning | FFC | Bartow | 62 min |
| Jul 1, 2:00 PM CDT | Severe Thunderstorm Warning | HUN | Madison | 30 min |
| Jul 1, 2:21 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 39 min |
| Jul 1, 2:26 PM CDT | Severe Thunderstorm Warning | BMX | Blount | 49 min |
| Jul 1, 2:34 PM CDT | Severe Thunderstorm Warning | HUN | Marshall | 26 min |
| Jul 1, 2:37 PM CDT | Severe Thunderstorm Warning | FFC | Dodge | 23 min |
| Jul 1, 2:44 PM CDT | Severe Thunderstorm Warning | HUN | Jackson | 31 min |
| Jul 1, 2:53 PM CDT | Severe Thunderstorm Warning | FFC | Cherokee | 52 min |
| Jul 1, 3:16 PM CDT | Severe Thunderstorm Warning | MRX | Hamilton, Marion | 44 min |
| Jul 1, 3:18 PM CDT | Severe Thunderstorm Warning | HUN | DeKalb | 27 min |
| Jul 1, 3:48 PM CDT | Severe Thunderstorm Warning | FFC | Glascock | 27 min |
| Jul 1, 3:51 PM CDT | Severe Thunderstorm Warning | MRX | Bledsoe, Hamilton, Rhea | 54 min |
| Jul 1, 4:07 PM CDT | Severe Thunderstorm Warning | FFC | Jefferson | 38 min |
| Jul 1, 4:29 PM CDT | Flash Flood Warning | HUN | DeKalb | 61 min |
| Jul 1, 4:40 PM CDT | Severe Thunderstorm Warning | FFC | Jefferson, Washington | 50 min |
| Jul 1, 4:50 PM CDT | Severe Thunderstorm Warning | FFC | Clayton | 20 min |
| Jul 1, 5:22 PM CDT | Severe Thunderstorm Warning | FFC | Heard | 38 min |
| Jul 1, 5:22 PM CDT | Severe Thunderstorm Warning | FFC | Henry | 38 min |
| Jul 1, 6:04 PM CDT | Severe Thunderstorm Warning | FFC | Coweta | 25 min |
| Jul 1, 6:09 PM CDT | Severe Thunderstorm Warning | FFC | Butts | 25 min |
| Jul 1, 6:31 PM CDT | Severe Thunderstorm Warning | FFC | Meriwether | 44 min |
| Jul 1, 6:41 PM CDT | Severe Thunderstorm Warning | FFC | Forsyth | 30 min |
| Jul 1, 7:06 PM CDT | Severe Thunderstorm Warning | FFC | Upson | 39 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 5.2 hours before the alert went out and 139 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 851 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1313 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:12 AM CDT | Mesoscale Discussion | SPC | Blount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 22 more | 2 hr |
| Jul 1, 2:09 PM CDT | Mesoscale Discussion | SPC | Lamar | 66 min |
| Jul 1, 3:20 PM CDT | Mesoscale Discussion | SPC | Calhoun, Cherokee, Cleburne, DeKalb, Etowah, Randolph and 1 more | 55 min |
| Jul 1, 5:16 PM CDT | Mesoscale Discussion | SPC | Calhoun, Chambers, Cherokee, Clay, Cleburne, Etowah and 2 more | 119 min |
Nearby
Severe Thunderstorm Watches in Georgia, 2007Severe Thunderstorm Watches in Alabama, 2007Severe Thunderstorm Watches in Tennessee, 2007Every severe thunderstorm watch in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.